Wall plaque



FIG. 1 is a front perspective view of a wall plaque embodying my new design;

FIG. 2 is a side elevational view taken from the right of FIG. 1;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a reduced rear perspective view thereof. 

The ornamental design for a wall plaque, as shown and described. 